New conjugated materials from anilines: from sub-monolayers to 3D porous architectures

报告题目:New conjugated materials from anilines: fromsub-monolayers to 3D porous architectures

 

报告人:Prof. Charl FJ Faul

 

报告时间: 2016927日(星期二)下午14:00  

 

报告地点:苏州大学独墅湖校区一期911号楼406

 


报告人简介

 

Charl F. J. Faul is Professor of Materials Chemistryand Director of Graduate Recruitment for the School of Chemistry, University ofBristol, UK. He received his PhD from the University of Stellenbosch, SouthAfrica, in 2000. After 4 years, first as post-doctoral researcher, and then assenior scientist at the Max Planck Institute of Colloids and Interfaces(Potsdam, Germany), he moved to Bristol in 2005. He has held visitingprofessorships at the Helsinki University of Technology (2006 - 2010), theChinese Academy of Sciences (National Centre for Nanoscience and Technology,Beijing (2012)) and is Adjunct Professor at the Department of Chemistry,Tsinghua University (Beijing, China) since November 2013

 

报告摘要

 

 Aniline-based materials have a very long history inthe field of conducting organic materials. The development of new synthetic andtheoretical methodologies, combined with advances in instrumentation andself-assembly approaches to materials, are now are yielding a next generationof materials for electronic and photonic applications. Starting fromsub-monolayer level, we have imaged, for the first time, the predictedconformational isomerism of various oligo(aniline)s using ultra-high vacuum(UHV) scanning tunnelling microscopy. The observed structures were corroboratedby TD-DFT calculations, and provided new insight into the role oxidation stateplays during self-assembly. These studies have led to the design of novelelectroactive amphiphiles and ways to reversibly tune their packing and thussupramolecular assembled structures. We have shown that such aniline-basedamphiphiles assemble into 3nm flat tape-like wires in aqueous media, and arenow exploring switchable assembly behaviour. Additionally, these activities nowact as a platform for our current TD-DFT studies to accurately model spin anddoped states. With our gained fundamental understanding of aniline-basedmaterials, we are now exploring new applications, including 3D-printedaddressable photonic structures (see figure below), as well as a range of newmaterials for highly selective CO2 and I2 capture.

 

                                                                                                                    (报告联系人:宋波)